Tap and reamer extension-wrench.



No. 760,103. PATENTED MAY 17, 1904. G. L. P. COMES. TAP AND REAMBREXTENSION WRENCH.

APPLICATION FILED AUG. 28. 1903.

N0 MODEL.

GARY L. P. OOMBS,

Patented May 17, 1904.

PATENT OFFICE.

or DAYTON, OHIO.

TAP AND REAIVIER EXTENSION-WRENCH.

SPEGIFIGATION forming part ofLetters Patent No. 760,103, dated May 1'7,1904.

l l Application filed August 28, 1903. Serial NdI'TLOBfi. (No model.)

ful Improvements inTap and Reamer Extension-VVrenches; andI do declarethefollowing to be afull, clear, and exact description of the lnvention,such as will enable others skilled in the art to which it appertains tomake and use.

the same, reference being had to the accompanying drawings, and to thefigures of reference marked thereon, which form a part of thisspecification.

This invention .comprises an extension wrench for reaming and tappingpurposes; and it consists of an adjustable wrench of the above type themembers of which areadjustable longitudinally to. vary the area of theopening which receives the head of the tool.

While the wrench is especially adapted for reaming and tapping, it isequally useful for turning any tool which has a squareopening or end.

Preceding a detail description of the invention reference is made to theaccompanying drawings, of which- Figure 1 shows the wrench adjusted toprovide a square opening of maximum area. Fig. 2 is a similar viewshowing the wrench adjusted to a position which provides a squareopening of minimum area. Fig. 3 is a View looking at right angles toFigs. 1 and 2. Figs. 4 and 5 are detached views of the two members ofthe wrench.

In a detail description of the invention similar reference charactersindicate corresponding parts.

1 1 designate the handles of the wrench. one of which terminates in asingle plate 3, which extends from the center thereof, and the other ofwhich has two plates 4 4, extending therefrom and providing anintervening space 2, which receives the single plate 3. In each of theseplates 3 and 4 there is provided a square opening 6 for the head orsquare end of the tool and which occupies a position which is alwayscentral relatively to the ends of the handles 1 regardless of whetherthe handles are moved to their outer positions, as shown in Fig. 1, orto their inner positions, as shown in Fig. 2. The single'plate 3, whichis movable, as, before stated, between the plates 44:, is provided withan oblong slot 7, and the plates 4: 4: are also provided with oblongslots 8, said oblong slots 8 being in alinement and adapted to receive apin 9, which is rigidly secured in the plate 3 adjacent to the endthereof. The slots'8 and the pin 9 provide a guide for the longitudinalmovements of the plates 3 and 4:,which movements are limited only by thesaid slots 8.

1O designates a screw' which penetrates openings 11 in the plates 4 andalso' passes through the oblong slot 7 of the plate 3. This screw. alsoprovides a guide in the slot 7 for the longitudinal movements of thehandles in increasing or decreasing the area of the opening 6. The screw10 also performs the function of clamping the outer plates 4 firmlyagainst the inelosed plate 3 when the wrench is adjusted to anydesirable position from the position which gives the greatest area tothe opening 6 to that which gives the smallest area to said opening. Thescrew 10 may be tightened by a wrench or a screw-driver, or any suitablemeans may be provided for tigh tening the said plates when adjusted totheir proper positions.

It will of course be understood that the implement may be constructed toreceive the head of a tapping or drilling tool of the greatest size, inwhich event it only becomes necessary to enlarge the remaining portionsof the implement to correspond with the maximum area of the opening 6.

Having described my invention, I claim- 1. In a wrench, the combinationof two handles terminating in plates which are slidingly connected, saidplates having square openings therein and adapted to receive the squareend of a tool, and the said openings registering with each other whenthe tool is in operative adjustment.

2. An adjustable wrench comprising two handles terminating at theiradjacent ends in flat extensions, said extensions having square openingsregistering with each other when the tool is in operative adjustment,and the said openings being adapted to receive the square end of a toolto be operated thereby, means for guiding said handles in thelongitudinal movements thereof to decrease and increase the area of theopening, and means for tightening said extensions'when adjusted to therequisite size of opening, substantially as set forth.

3. In an adjustable wrench,two handles movable longitudinally inopposite directions, said handles having fiat extensions at theiradjacent ends, square openings in said extensions adapted to receive theend of a tool to be operated, said openings registering with each otherwhen the tool is in an operative position, longitudinal slots in saidflat extensions, a pin projecting through one of said extensions andpenetrating the adjacent slots in the remaining extensions, and meansfor tightening said extensions when the wrench is adjusted to therequired position, substantially as set forth.

45. In a wrench, the combination of two handles one of which terminatesin two parallel plates with an intervening space, and the other of'whichhas a single plate which is slidingly maintained within said space,square openings "in said plates which register with each other and thearea of which is decreased or increased from the maximum and minimumareas according to the extent of longitudinal movements imparted to thehandles, and means for guiding such movements, substantially as setforth. l I

5. In a wrench, the combi-n ation of. two handles, one of whichterminates in two parallel of which has a single plate which isslidingly maintained within said space, square openings in said plateswhich register with each other and the area of which is decreased orincreased from the maximum and minimum areas according to the extent oflongitudinal movements imparted to the handles, means for guiding suchmovements, and means for tightening the plates after the requisiteadjustment is obtained, substantially as set forth.

6. In a wrench, two operating-handles, one of which terminates in twoparallel inclosing plates with an intervening space, and longitudinalslots, and rectangular square openings in said plates, and the other ofwhich terminates in a single plate adapted to be projected into thespace between the inclosing plates,

.the said single plate having a pin projecting laterally-therefrom andadapted to penetrate the longitudinal openings in the inclosing plates,the said single plate having a square opening which registers with thesquare opening in the inclosing plates, and a bindingscrew penetratingthe inclosing plates, and an oblong opening in the single plate,substantially as set forth. q

In testimony whereof I affix my signature in presence of two witnesses.

GARY L. P. COMES. Witnesses:

R. J. MOOARTY, JOHN W. KALBFUS.

